217807 (2000 XK44)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3853678080 ± 3.72e-09
Semi-major axis (a)1.7242325547 AU ± 1.39e-09
Inclination (i)11.23606881° ± 2.47e-06
Long. of Asc. Node (Ω)48.09553167° ± 3.14e-06
Arg. of Perihelion (ω)347.67475706° ± 6.37e-06
Mean Anomaly (M)34.48857405° ± 3.76e-06
Mean Motion (n)0.4353299182°/day ± 5.27e-10
Perihelion dist (q)1.05976883 AU ± 6.46e-09
Aphelion dist (Q)2.38869627 AU ± 6.69e-09
Orbital Period2.26409039 yr ± 2.74e-09
Physical Parameters
H (abs. magnitude)18.36
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.320″
Uncertainty0
Orbit TypeAmor
MOID0.071629 AU
Observations Used494
Radar Obs Used6
Oppositions19
Arc Total1975-2009
First Observation Used1975-07-16
Last Observation Used2026-01-01
Observations (522)
Date Type RA Dec Mag Band Observatory
1975-07-16 15:07:24 21 37 59.70 -45 29 04.0 260
1975-07-16 15:57:24 21 37 59.25 -45 29 53.6 260
2000-12-05 10:11:56 C 10 04 37.89 +35 45 26.4 19.3 c 704
2000-12-05 10:34:01 C 10 04 38.94 +35 45 44.3 18.8 c 704
2000-12-05 10:58:59 C 10 04 40.22 +35 46 04.4 18.6 c 704
2000-12-05 11:21:11 C 10 04 41.37 +35 46 22.2 19.0 c 704
2000-12-05 11:44:00 C 10 04 42.46 +35 46 40.5 19.1 c 704
2000-12-06 03:52:23 C 10 05 34.95 +35 59 26.4 c 046
2000-12-06 03:54:07 C 10 05 35.01 +35 59 27.5 c 046
2000-12-06 03:55:33 C 10 05 35.12 +35 59 28.6 c 046
2000-12-06 03:56:58 C 10 05 35.24 +35 59 29.9 c 046
2000-12-06 03:58:28 C 10 05 35.27 +35 59 31.1 c 046
2000-12-06 08:51:25 C 10 05 51.87 +36 03 26.6 18.4 c 704
2000-12-06 09:13:15 C 10 05 52.88 +36 03 45.0 18.7 c 704
2000-12-06 09:35:43 C 10 05 53.97 +36 04 03.3 18.3 c 704
2000-12-06 09:57:36 C 10 05 55.04 +36 04 21.4 18.6 c 704
2000-12-06 10:19:27 C 10 05 56.07 +36 04 40.0 19.0 c 704
2000-12-06 10:43:34 C 10 05 57.11 +36 04 59.4 18.6 c 704
2000-12-06 11:05:24 C 10 05 58.10 +36 05 17.4 18.8 c 704
2000-12-06 11:27:07 C 10 05 59.15 +36 05 34.2 18.5 c 704
2000-12-06 11:48:52 C 10 06 00.16 +36 05 51.4 18.5 c 704
2000-12-06 12:10:37 C 10 06 01.24 +36 06 09.6 18.5 c 704
2000-12-07 02:33:38 C 10 06 45.69 +36 17 33.5 c 046
2000-12-07 02:35:12 C 10 06 45.79 +36 17 34.7 c 046
2000-12-07 02:36:52 C 10 06 45.86 +36 17 36.1 c 046
2000-12-07 02:38:29 C 10 06 45.92 +36 17 37.1 c 046
2000-12-07 02:39:52 C 10 06 46.00 +36 17 38.8 c 046
2000-12-17 09:07:13 C 10 14 42.27 +39 39 21.7 18.0 c 704
2000-12-17 09:29:01 C 10 14 42.47 +39 39 40.2 18.3 c 704
2000-12-17 10:12:37 C 10 14 42.80 +39 40 16.8 18.3 c 704
2000-12-17 10:34:43 C 10 14 42.95 +39 40 36.7 18.4 c 704
2000-12-26 17:49:56 C 10 13 28.56 +42 44 10.9 360
2000-12-26 17:53:38 C 10 13 28.44 +42 44 13.6 360
2000-12-26 18:01:09 C 10 13 28.16 +42 44 20.1 360
2000-12-30 10:35:33 C 10 10 37.32 +43 53 32.3 711
2000-12-30 10:45:53 C 10 10 36.85 +43 53 39.9 711
2000-12-30 10:55:53 C 10 10 36.38 +43 53 47.8 711
2000-12-31 07:47:11 C 10 09 45.87 +44 09 25.5 c 699
2000-12-31 08:11:03 C 10 09 44.93 +44 09 44.0 c 699
2000-12-31 08:34:53 C 10 09 43.76 +44 10 01.9 c 699
2000-12-31 08:58:50 C 10 09 42.53 +44 10 21.9 c 699
2001-01-15 22:05:56 C 09 43 38.14 +47 45 43.1 118
2001-01-15 22:10:50 C 09 43 37.65 +47 45 45.2 118
2001-01-15 22:14:30 C 09 43 37.34 +47 45 46.7 118
2001-01-24 05:49:51 C 09 24 33.78 +48 28 54.1 912
2001-01-24 06:29:39 C 09 24 29.61 +48 28 56.9 912
2001-01-24 07:09:04 C 09 24 25.67 +48 28 58.9 912
2001-01-26 05:14:36 C 09 19 59.05 +48 30 30.6 912
2001-01-26 05:43:02 C 09 19 56.37 +48 30 30.6 912
2001-01-26 06:11:00 C 09 19 53.45 +48 30 30.8 912
Radar Observations (6)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2009-11-08 05:16:00 75831227.86 1 us 2380 -1 -1
2009-11-08 05:16:00 -30037.1932 0.1 Hz 2380 -1 -1
2009-11-09 04:10:00 76980677.61 1 us 2380 -1 -1
2009-11-09 04:10:00 -35188.4707 0.05 Hz 2380 -1 -1
2009-11-10 04:13:00 78443184.3 1 us 2380 -1 -1
2009-11-10 04:13:00 -42421.6673 0.05 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)